Blower



B. ESSICK Oct. 5, 1948.

BLOWER Filed Jan. 16, 1945 IN VEN TOR. me,

,47 TOQA/EK Patented Oct. 5, 1948 `f Y 2,450,647v

UNITED sTATEsPATENT OFFICE Bryant Essick, Los Angeles, Calif.

Application January 16, 1945, Serial vNo. 572,397

' This invention has to do with a blower and relates more particularlyto a combined blower and casing, it being a general object of theinvention to provide a combined blower and casing. which is strong andstable and which involves a minimum number of simple, inexpensive parts.

There are numerous situations where blowers are provided with casings,for example, in air coolers or in air conditioning apparatus it iscommon to employ a blower to circulate air and to provide a case aroundthe blower to house it, or to carry other elements such as evaporativecells,

etc. It is common to construct a blower as a unit and to build a casefora blower as a unit` and then mount the blower in the case. This usualconstruction requires that the blower in and of itself be -constructedso that it is sturdy and can be handled as a unit, and also that thecase which is commonly formed of sheet metal be of heavy construction orprovided with a frame and other elements giving it stability andrigidity so that it can be handled as a unit.

It is a general object of the present invention to provide a combinedblower and case which forms a single, unitary structure that is strong'Another object of the present invention'is to provide a unitarystructure involving. a blower and case in which the several parts areexceedingly simple and inexpensive in form and are such that they can bereadily assembled or combined to establish the final unitary structur-e.

Another object of the present invention is to provide a construction ofthe general character hereinabove referred to involving a blower with adriving motor on the -exterior thereof located so that the motor'doesnot project'from the other parts of the blower in a manner torequire acase appreciably larger than that barely nec--v essary to house the saidother parts of the blower. With the construction of the presentinvention the housing of the blower has one corner constructed toaccommodate the motor which drives the blower so that the motor is, ineffect, confined within the 'general contour of the housing' or within arectangular area that will barely accommodate the housing, all to theend that the motor is not a projection requiring special lspaceinthecase.` f' I 1o claims. (cl. 23o- 117) It is another object of thepresent invention to provide a combined blower and case therefor, whichcase is formed primarily of sheet metal parts and is entirely free ofthe usual angle iron frame elements, yor like parts, usually required ina structure of this character to hold the sheet metal parts in place.

Thevarious objects and features of my invention will be fully understoodfrom thefollowing detailed description of typical preferred forms andapplications of my invention, through-` out which description referenceis made to the` accompanying drawings, in which:

Fig. 1 is a view taken through a structure ernbodying the presentinvention showing the gen eral arrangement or location of the blowerwithin the case. Fig. 2 is a front view of the structure shown in Fig.l, being a view taken as indicated by line 2-2 on Fig. 1. Fig. 3 is anenlarged detailed sectional view taken as indicated by line 3,-3 onFig. 1. Fig. 4 is a View similar to Fig. 1 showing another form ofconstruction. Fig. 45 is a view similar to Fig. 2 showing the form ofconstruction illustrated in Fig. 4, and Fig, 6 is an enlarged detailedsectionalV View taken as indicated by line 6-15 on Fig. 4. Y v

The device or structure provided by my invention can Vbe used,generally, where it is desired to combine a blower and a case therefor.

VSince air coolers or air conditioning apparatus commonly involve such acombination I havefor to or incorporated in the combination of a blowerfor circulating air and a case for such blower,

. which case also carries evaporative cells and means for wetting suchcells so that the combined structure, in total., forms what is generallyknown asv an evaporative cooler. It is to be understood that the broaderprinciples of this' invention are not to be confined to this specic useor application, but that the invention can be used` generally wherever ablower and case are used together.

The two essential elements of the structure that I have provided aretheblower A and the case B inA which the blower is arranged. Since mypresent invention combines these two elements so that their parts arejoined'or interlocked so that one braces and stabilizes the other, it ishardly proper to consider these elements wholly separate and apart..However, to facilitatean understanding I will refer to them separatelyand then explain the manner in which they are combined.Y I y .ThefblowerA involves, generally, spaced side. plates Ill, a curved body Ilextending rbetween and joined to the side plates formingja chamber invwhich the rotor l2' operates and a` drive for the rotor which includes amotor I3 mounted on the exterior of the housing and a suitable drive,for instance a belt drive I4, between the motor and the rotor. c

The side plates.. III. ofthe blower housingarev preferably: flat sheetfmetal elements substantially rectangular in shape, so that each presentsa straight bottom edge I5, a straight top edge I6, a straight verticalrear edge II, and a straight` vertical front edge I8. In practice I maystilfem4 the plates by turning the edge portions thereof, so that theypresent flanges such as` the flangeA 20, shown along the bottom edge inFigs.- Lland 6;,

or the iiange 2| shown along the top edge as shown in Fig. 4, or theymay be stiffened' by the application of a stiffening member' or angleiron 22; asshown at the lowerfedge in Figs. l, 2 and 3 oflfthedrawings.In the particular formsv of construction shown inthe drawings angleirons :,225 aref applied only along thelower edge portions offtheisideplates Iwhile integral'flanges -20 and" L 2ll'are turned only along thetop and bottom edges of the side plates lila shown inf ligsL 4 to.6,'inclusive; It is torbe understood, however, from these f typicalillustrations that either applied members orz integrally turned partscan be ern-- ployed atianyof the edgesof the sidefplates where such aredesired or necessary.

The body of theL blower housingispreferably formedfof a single;continuous sheet or strip of sheet metal suitably formed or bentandsecured between the side plates I 0; In the caseillustrated thek bodyhasatop wall portion 30 extending between the upper edge portions of theside plates and 'disposed substantially horizontally and it has abcurvedor convolute portion 3I continuing rearwardly and downwardly from thetop 30- and then forwardly and downwardly and then forwardly andupwardly to4 terminate at a point X spaced somewhat below the top301-andbetween the forward edge portionsl ofv the side plates to form al discharge opening for the blower between its' upper-edge3-3-andftheQtop 30; Theedges of the sheetZ which form the bodyoi'f theblower are preferably pern'lanently` joinedor secured to thev sidesheets or'` side plates IU, as byiwelding, so thatlthefbody-and sideplates VVform a rigid integral structure.

Al suitable discharge duct-36 isprovided at the' discharge opening oftheblower by providing` forwardlyprojectingfange parts- 31 atk the frontedges=` I8 of the` side plates and a` forwardly projecting -flange38-maybe provided -on the top wall 30 ofthe-body-t'o extend betweenthe-upperends-of the anges e36-1 and 1alower` iiangek 39 '.mayI beprovidedftojointheflower ends-'ofv the flangesv 3T; theseveral flanges formingarectangular duct'- connected; iff desired.

In accordance with my present invention" the upper= rear corners ofi theside plates' I0` are beveled lor cut away to form diagonally disposedrear-corneredges 4D, the corners being thus cut' away1as= farr as ispossibleY without interfering` with the body of Tthe housing which issecured tothe plates. By thusY beveling the upper rear corners of theside-plates the upper rear portion offthehousing is removed, leavingaspace to conveniently accommodate themotor-I 3. The motor' can bemounted in the said space in any suit able manner, it being preferred'tomount it di' rectly on the housing. Inthe form of the'inventionshowninFig; 1 the motoris shownmounted: onaa4 loasecplateAIV which extendsbetween the;

beyeledzedges.- 40 of the: side plates-, Whereas; inf;

Fig. 4 :.of the, drawings; I, showgzan; arrangement:

. Y sheet` metal;

wherein the motor I3EL is mounted on the curved rearwardly anddownwardly extending wall of the body of the housing. When the motor ofthe blowerA is mounted in this manner it is mounted so that; iti doesvnot project from thestructure in a mann-er to be in the way or to makeit necessary toprovide a case for the blower appreciably larger than theblower itself. In the case shown in Fig. 4 where the motor I3 is small,it will` not project beyond the area defined by 'the'said sides of theblower housing. However, as; shown ing F'ig: 1,-r the motor I3 issomewhat larger and even so projects only slightly to the rearvof 'therear edges I'I and only slightly above f the top edges IG of the' sideplates I0.

The rotor I 2z of the blower' may'bermounted inthef housing in anysuitabletmanner; asffor instance onta. shaft' supported iin bearings:`5I: carried thy-bracketsV 52. applied toithe side plates ofthe-housing'.- The' drive shown in thedrawings' between the motorandither rotor isriarbelt drive:y involvinguia belt running. over.pulleys onthe' motor shaft: and the. shaft 50.'

The case B -mayfbe'- formedfY almost r entirely` of In the preferredconstruction the*` case involves, primarily, a-sheet metal bottom wall55;. arsheetmetal top wall 56,V aisl'leetA metal frontf wall''l; asheet' metal rear wall 58,' and' sheet' metal sidewalls 59.' Intheparticular design shown in the drawings. the several wallsfof thecaselarerflatsheet metal parts', the b`ottom, top andk front walls.being continuous flat sheets, whereastherear and'side walls l'iaverlargeopen@ ings'A inthem to accommodate: evaporative cellsj 6I); Inaccordance with myv invention the-several parts 'of the-casecanbe'formedseparatelyas de-A sired, or adjacent:partscan be formedintegre'illy:` and; in l effect,` theseveral l parts togetherV form*` asheet meta-l box-like;- structuretof house'- the blower'Ar Inaccordancewith my present invention thel blowen-'Ah is incorporated inthel case B sof that these'twoi elements reinforceand; brace each other:or; in other-wordsso'thatthey: are kunitedto form atsinglerintegral orunltary'structure; Inl the44 form: ofthe. invention illustratedzin Figs;1' to 3 ,1 inclusive; the :lower edges VI Stof fthes'ideiplatesr I 0.of'th'eA blower reston lthe bottom 551i of-"thef case; Insthe'particular construction illustratedv theser parts; aref` joined itogetherV by the.A angle iron 22? whicl'in'layl befsuitably. joined'tothe connecting;l parts. In the case illustrated the angle irons may--be' weldedat E8l to thebottom'55 and .may-be secured to -thelsideplatesil Ill vby bolts; 635: onthef-likez Theffront edges'. I 8?.off-the side-plates: I engage the front wall51iofthecase-iandmay besuitably joined? orssecuredvthereto;` ifdesired:L Through Athe joinder`ci? 'thefblower partstothefcase' the sheet metal iside -plates f.: Ill-'of thea-housing; ofthe blowen-'are bracedlrelative toveachr othenandthetblowen-1 istV givenLaneiective support andf'atithesameztimecthe case isAstrengthened andreinf'orced Aniopeningcliis providedinzthefront wall 5Tiofthefcase andth'e ductportionr ci the blower housingfn projectsithrough. that`v openingr and? inpractiegasuitableconnecting:angesmaybeprol vided :to.;join=1the1.blowerto 1 th'ei casesaroundffthe' opening Inl the drawings: Il haveindicatedscrewtfasteners, 'I I .I for fthis: purpose. By thusl joiningifthefrontawallETI-.of :theica'setto 'the house ingiof'thezblowerbracethe?entireibaserfromzthe: blower.VThe1construction;justf,descrilmediacts to;effectively;stabilzetorfbrace :the sheettmetalzboxf.,likexcasezagainst:racking 1in' any^direction and; aca-y complishes thiswithout the use of anygspecial';

. frame structure such as is ordinarily required in a structure of thiskind.

The coupling or joinder of the blower and case may be as I have abovedescribed, or it may iurther include a connection between the upper edgeportions of the side plates l0 and the top 56 oi the case, as shown inFigs. 4 and 5 of the drawings. In these particular gures of the drawingsI have shown flanges 2| turned on the upper edges of the side plates maand these flanges are secured to the top 55 of the case, with the resultthat the side plates a form direct supports for the top of the case, aswell as supporting the front Wall of the case.

From the foregoing description it will be apparent that I have, by mypresent invention, prom vided a simplified, inexpensive and improvedconstruction. The blower A formed as I have provided, is exceedinglysimple and inexpensive of manufacture in that it involves but few simpleparts. Likewise, the case is exceedingly simple, as it may includemerely the few simple sheet metal parts that I have described. Bycombining the two simple structures or elements A and B as I haveprovided, the two elements strengthen and stabilize each other andtogether form a strong, firm, durable construction. I have, by mypresent invention, eliminated'various frame parts for the case andmounting construction ordinarily required for the blower and have thuslightened the entire structure, and at the same time have minimized thecost of construction.

Having described only typical preferred forms and applications of myinvention I do not wish to be limited or restricted to the specicdetails herein set forth, but wish to reserve to myself any variationsor modifications that may appear to those skilled in the art or fallwithin the scope of the following claims.

Having described my invention, I claimz' 1. A blower including spacedsubstantially rectangular side plates, a curved body joined between theside plates forming a rotor chamber with-an outlet opening, corners ofthe sideplates removed from the outlet opening being cut away, a rotorin the chamber, and a motor for driving the rotor mounted Yat theexterior of the chamber on said structure at the portion thereof wherethe corners are cut away.

2. A blower including spaced substantially rectangular side plates, acurved body joined between the side plates forming a housing with anoutlet opening at its front end, the upper rear corners of the platesbeing cut away, a rotor in the housing, a motor on the said structurewhere the corners are cut away and a drive from the motor to the rotor.

3. A blower including spaced substantially rec tangular side plates, acurved body joined between the side plates forming a housing with anoutlet opening at its front end, the upper rear corners of the platesbeing out away, a rotor in the housing, a motor on the said structurewhere the corners are out away and a drive from the motor to the rotor,the motor being supported entirely by the upper rear portions of theplates.

4. In combination, a blower including substantially rectangular verticalside plates, a curved body carried between the side plates cooperatingtherewith to form a rotor ohambeL-a rotor in the chamber, the upper rearcorners of the plates outward of .the body being beveled away, a motorat the upper rear cornerrof said structure and at the outer side of saidbody, and a drive from the motor to the rotor, and a case around the 6blower and completely housing the motor, the side plates of the blowerbeing secured directly to the bottom of the case.

5. In combination, a blower including substantially rectangular sideplates, a curved body carried between the side plates cooperatingtherewith to form a rotor chamber, a rotor in the chamber, the upperrear corners of the .plates outward of the body being beveled away,` amotor at the upper rear corner of said structure outside of the chamber,and a drive from the motor to the rotor, and a case around the blowercompletely housing the motor, the side plates of the blower beingsecured directly to the bottom of the case and the front of the blowerbeing secured to the iront of the case.

6. In combination, a blower including substantially rectangular verticalside plates, a curved body carried between the side plates cooperatingtherewith to form a rotor chamber, a rotor in the chamber, the upperrear corners of the plates outward of the body being beveled away, amotor at the upper rear corner of said structure at the exterior of thechamber, and a drive from the motorto the rotor, and a case around theblower housing the motor and drive, the side plates of the blower beingsecured directly to the bottom of the case, to the top of the case, andto the front of the blower.

7. A blower including spaced substantially rectangular side plates, acurved body, having ends, joined between the side plates and forming arotor chamber with an outlet opening between said ends, a rotor in thechamber, and a motor" for driving the rotor mounted at the exterior of.

the chamber.

` 8. A blower including spaced substantially rec- `ends, a rotor in thechamber, a motor for driving the rotor mounted at the exterior of thechamber within planes defined by said side plates. 9. A blower includingspaced substantially rectangular side plates, a curved body, havingends, joined between the side plates and forming a rotor chamber with anoutlet opening between said ends, a rotor in the chamber, a motor fordriving the rotor mounted at the exterior of the chamber, and a casearound the blower and completely housing the motor, the side plates ofthe blower being secured directly to the bottom of the case. 10. Ablower including spaced, substantally rectangular side plates, a curvedbody, having ends, joined between the side plates and forming a rotorchamber with an outlet opening between said ends, a rotor in thechamber, a motor for driving the rotor mounted at the exterior of thechamber within planes defined by said side plates, and a case around theblower and completely housing the motor, the side plates of the blower.

being secured directly to the bottom of the case. BRYANT ESSICK.

REFERENCES CITED The following references are of record in the ille ofthis patent:

UNITED STATES PATENTS Anderson J an. 2, 1940

